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It is known that the GDT has a slow response and the TVS is fast response but has low voltage rating.
So my question is: during surge like lightning if very high voltage/current come to the SPD, it will not at first be detected by GDT (due to its low response) and will go to TVS which can not withstand this very high voltage/current and can be burned or damaged. but this actually not happening as the SPD should not be destroyed during surge. So how it works to overcome this issue of slow GDT time response? also please what is actually meant by GDT slow response? is it time taken by it to detect surge or time to response to surge after detecting it?
So my question is: during surge like lightning if very high voltage/current come to the SPD, it will not at first be detected by GDT (due to its low response) and will go to TVS which can not withstand this very high voltage/current and can be burned or damaged. but this actually not happening as the SPD should not be destroyed during surge. So how it works to overcome this issue of slow GDT time response? also please what is actually meant by GDT slow response? is it time taken by it to detect surge or time to response to surge after detecting it?